Published November 15, 2021 © Apache-2.0

Smart dustbin

No contact dustbin

BeginnerShowcase (no instructions)1 hour347

Things used in this project

Hardware components

Arduino UNO

SparkFun Ultrasonic Sensor - HC-SR04

SG90 Micro-servo motor

Jumper wires (generic)

9V battery (generic)

Story

Just made it during my leisure time...

video on youtube and subscribe also:-

Code

Code

#include<Servo.h>
Servo myservo;
#define trigPin A0
#define echoPin A1
int Time, distanceCmR;
void setup(){
  myservo.attach(7);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  myservo.write(150);
}
void loop(){
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  Time = pulseIn(echoPin, HIGH);
  distanceCmR= Time*0.034/2; 

  if(distanceCmR<=5){
    myservo.write(15);
    delay(2500);
    myservo.write(150);
  }
}